A Newsletter About Everything Redis

Issue #2(01)5
January 1st, 2015

Editor's Note

Lets say goodbye to 2014 and kick off the first day of the new year with Redis Watch's Silver Anniversary issue #25. Lots of goodies below to keep you busy during the long weekend. BTW, IMO 25 is a neat number also because 5^2 = 25.

Redis Trivia: there are 31 Redis commands that start with the letter 'S'.

Happy New Year,

Great apps. Big performance. Little effort.

NEW! Redis Labs Enterprise Cluster

We've just launched a new product – Redis Labs Enterprise Cluster. Download the free beta to run your very own Redis Cloud-like service anywhere. We're very proud of it and we'd love to hear what you think 🙂

Stories and News

Pop the Red Box’s Lid: Redis Lua Debugger (6 minutes to read)

If you're writing Redis Lua scripts, check out this little tool I made – it can save you a lot of time when you're trying to debug your code.

NGINX and Single sign-on Authentication in Under 150 Lines of Code (32:15 minutes to watch)

A talk given by @_chriswhitten_ from @SEOmozPRO in the recent 2014 @NGNIX conference. Good talk, interesting challenge, tiny solution and impressive metrics (1 master, 6 Redis slaves for read scaling, 50K sessions concurrent, 4B requests/month and never a single Redis crash).

Top 10 Redis Interview Questions (5 minutes to read)

Whether you're preparing for your next job interview or just want to test your Redis knowledge, here are the (alledged) top questions about Redis. The idea is nice, but the execution is somewhat flawed – spotting the errors and inaccuracies in the article is left as an exercise to the advanced reader.

Development & Tools

Redis data modeling examples

#redis #slides

5 data modeling examples in Redis @TerryCho: log writer, visitors count, shopping basket, likes & count unique visitors per day (last example implemented with bits rather than with HLL).

Redis blogging system design

#redis #howto

Despite starting the article with slightly negative tones, @tengyifei88 quickly realizes the Redis potential and explains how to design a blogging system with it.

Building a Chat Server With Node.js and Redis

#NodeJS #howto

@mattbd explores the use of Pub/Sub for building a chat server and details all the steps required.


#python #foss

Inspiration-struck @helixoide had built a Python package store in Redis. Quoting the author: "e;You probably shouldn't use this."


Miscellaneous bits and pieces that caught my attention:


@dmitryro: "Redis has been very helpful tool – the thing I'd never say about MongoDB."

@nilsding: "I managed to let a Rails application talk to NodeJS using Redis’ Pubsub functionality. Awesome stuff."

@vam_si: "Not sure how I got through my 4 year career without using #Redis @redisfeed Great datastore for quite a few persistence needs."

@nutanc: "Making Redis the main focus has optimized a lot of our services #learningsin2014"

@xetorthio: "#jedis 2.6.2 is out! Last release of 2014 in a few places, in others the first of 2015! Enjoy! #redis #java"

Questions?  Feedback?  Anything you want to share?  Email or tweet me – I'm highly available 🙂

This newsletter was produced and distributed by Redis Labs, Inc.
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